[IfcDocumentInformation.IsPointedTo property IsPointedTo public IfcCollection<IfcDocumentInformationRelationship> IsPointedTo { get; } 也可以看看 class IfcCollection<T> class IfcDocumentInformationRelationship class IfcDocumentInformation 命名空间 Aspose.CAD.FileFormats.Ifc.IFC2X3.Entities 部件 Aspose.CAD]